Кафедра "Технічна електрохімія"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/3034

p>Офіційний сайт кафедри https://web.kpi.kharkov.ua/dte

Кафедра "Технічна електрохімія" була заснована в 1930 році в Харківському хіміко-технологічному інституті. У 1931 році її очолив М. А. Рабінович.

Кафедра технології електрохімічних виробництв почала самостійно функціонувати з 1926 року під керівництвом А. В. Терещенка, але офіційно була затверджена лише в 1930 році.

Кафедра входить до складу Навчально-наукового інституту хімічних технологій та інженерії Національного технічного університету "Харківський політехнічний інститут".

У складі науково-педагогічного колективу кафедри працюють: 2 доктора та 7 кандидатів технічних наук; 1 співробітник має звання професора, 6 – доцента 1 – старшого дослідника.

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20172

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ORCID: search.filters.orcid.https://orcid.org/0000-0001-5188-6479

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  • Ескіз
    Документ
    Study into the influence of concentration of ions of chlorine and temperature of circulating water on the corrosion stability of carbon steel and cast iron
    (Технологический центр, 2017) Pancheva, Hanna; Reznichenko, Ganna; Miroshnichenko, Nataliya; Sincheskul, Alexander; Pilipenko, Alexei; Loboichenko, Valentyna
    The impact of the chloride ions concentration and the temperature of the circulating water on the process of corrosion destruction of carbon steel and cast iron has been investigated. It has been shown that an increase in the concentration of chloride ions causes a shift in the values of the stationary potentials of steel and cast iron to the region of negative values and reduces the passive state of these alloys. This leads to an increase in the corrosion rate of St.3 steel and CI 18-36 cast iron. The results of electrochemical studies have shown that the more reliable protective films are formed on steel than on cast iron. The limiting concentration of NaCl, at which reliable operation of equipment made from these alloys is possible, depends on the pH of the solution. At pH=7, it is about 1.2 g l⁻¹, which is about an order of magnitude less than at pH=12. When the circulating water temperature rises, the corrosion rate of steel and cast iron increases. The stationary potentials of steel and cast iron are shifted to the negative range, and the polarization of the anode process decreases. Corrosion process is limited by the rate of oxygen supply to the cathode areas.
  • Ескіз
    Документ
    Design of the modified oxide-nickel electrode with improved electrical characteristics
    (Технологический центр, 2017) Sincheskul, Alexander; Pancheva, Hanna; Loboichenko, Valentyna; Avina, Svetlana; Khrystych, Olena; Pilipenko, Alexei
    The influence of lithium hydroxide was examined on the characteristic features of charge and discharge and electrical parameters of the sintered oxide-nickel electrode in a solution of potassium hydroxide. It is shown that the introduction of LiON to the composition of electrolyte does not lead to a change in the specificity of charge and discharge processes of the electrode. The experimental work conducted allowed us to establish dependences that connect the magnitude of analytical concentration of the Li⁺ ions to specific capacity and capacity output of the electrode. The results obtained show that an increase in the content of Li⁺ ions in the electrolyte from 1 to 100 g·l⁻¹ causes a growth of the electrode’s specific capacity from 0.79 (А·h)·cm⁻² to 1.84 (А·h)·cm⁻². It is optimal to introduce LiOH to the electrolyte in the amount of 30‒50 g·l⁻¹. It was established that the magnitude of specific capacity of the oxide-nickel electrode depends on the number of charge-discharge cycles and increases with an increase in the number, which is related to the slow character of the course of mass transfer processes in the volume of active mass of the electrode.